NAS-XXX 데이터 시트보기 (PDF) - Unspecified
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NAS-XXX Datasheet PDF : 2 Pages
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SEMI-PRECISION POWER
WIREWOUND RESISTOR
ISO-9001
Registered
AS SERIES
• 1/4 watt to 10 watts
• ±5%, ±3%, ±1%, ±.5% tolerance
• 0.1 ohm to 175K ohms
• Resistance wire TCR ±20 ppm/°C
Alloy resistance wire wound
to specific parameters
including TCR's from ±20 to
+5500 ppm/°C
Alpha - Digital
Marking
All welded cap
and lead
assembly
Silicone conformal
coating
Heat conducting
ceramic substrate
SPECIFICATIONS:
Power Rating 275°C
Equivalent
MIL-R-26
Max. Hot Spot (watts)
IRC Type Style
125°C
25°C
AS-1/4
RW81
0.5
1
AS-1/2
0.5
1
AS-1
RW70U
1
2
AS-1C
1
2
AS-2
RW-69V/
2
3
RW79U
AS-2B
3
4
AS-2C
2
3
AS-3
3
5
AS-5
RW74U/
5
7
RW67V
AS-7
7
9
AS-10
RW68V/
10
14
RW78U
Commercial Range
(ohms)
Min.
0.1
0.1
0.1
.05
0.1
Max.
1.0K
6.0K
7.5K
2K
20K
0.1
24K
0.1
18K
0.1
30K
0.1
60K
0.1
90K
0.1
175K
Non-Inductive Range
(ohms)
Min.
*
*
0.1
*
0.5
Max.
*
*
3.8K
*
10K
Available Resistance
(ohms)
0.5%, 1%
1-1K
1-6K
1-7.5K
1-2K
1-20K
3%, 5%
0.1-1K
0.1-6K
0.1-7.5K
.05-2K
0.1-20K
0.5
12K
1-24K
0.1-24K
0.2
7.5K
1-18K
0.1-18K
0.5
15K
1-30K
0.1-30K
0.8
30K
1-60K
0.1-60K
1.0
45K
1-90K
0.1-90K
3.0
50K
1-175K 0.1-175K
Inductance of AS-1/2 is less than 1µH at 1MHz.
To order non-inductive types, add the prefix "N". Example: NAS-1, NAS-2C, etc.
DIMENSIONS (Inches and (mm)):
Please note lead length
dimension change on the
following two items only:
AS-2B 1.3 min
AS-2C 1.3 min
1.50 min.
(38.1)
B
A
D
C
* Typical inductance of AS-1C <5 ohms is < 1µH.
Lower values available upon request.
NOTE:
• Coating and marking is resistant to normal freon degreasing.
Consult factory for special requirements.
• AS marking available in Alpha Numeric or Colorbanding -
identification available.
IRC Type
A±0.032
B (max)
C (max)
AS-1/4
0.250 (6.4)
0.094 (2.4)
0.312 (7.9)
AS-1/2
0.312 (7.9)
0.094 (2.4)
0.375 (9.5)
AS-1
0.367 (9.3)
0.125 (3.2)
0.429 (10.9)
AS-1C
0.256 (6.5)
0.115 (2.9)
0.303 (7.7)
AS-2
0.480 (12.2)
0.250 (6.3)
0.600 (15.2)
AS-2B
0.540 (13.7)
0.219 (5.6)
0.663 (16.6)
AS-2C
0.489 (11.0)
0.157 (4.0)
0.594 (15.1)
AS-3
0.687 (17.5)
0.282 (7.2)
0.812 (20.6)
AS-5
0.875 (22.2)
0.344 (8.8)
0.980 (24.9)
AS-7
1.250 (31.8)
0.344 (8.8)
1.375 (35.0)
AS-10
1.812 (46.0)
0.385 (9.8)
1.937 (49.2)
*Leads 60/40 are solder plated. AS-1C leads are copper. All others are 40% conductivity copper sheathed steel.
D (Lead Diameter)
0.020 (0.5)
0.020 (0.5)
0.020 (0.5) 0.025 (0.64)
0.025 (0.64) 0.032 (0.8)
0.032 (0.8)
0.032 (0.8)
0.032 (0.8)
0.040 (1.0)
0.040 (1.0)
0.040 (1.0)
0.040 (1.0)
WIREWOUND AND FILM TECHNOLOGIES DIVISION
1
736 Greenway Road • Boone, North Carolina 28607-1860 • Tel: 828-264-8861 • Fax: 828-264-8866 • www.irctt.com
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